* variable.c (set_const_visibility): clear inine-cache when constant's

visibility is modified. [ruby-dev:44929]

* test/ruby/test_module.rb (test_private_constants_clear_inlinecache):
  add test for it.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33987 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/ruby/test_module.rb

@@ -1130,6 +1130,27 @@ class TestModule < Test::Unit::TestCase
     assert_in_out_err([], src, %w(Object :ok), [])
   end
 
+  def test_private_constants_clear_inlinecache
+    bug5702 = '[ruby-dev:44929]'
+    src = <<-INPUT
+    class A
+      C = :Const
+      def self.get_C
+        A::C
+      end
+      # fill cache
+      A.get_C
+      private_constant :C, :D rescue nil
+      begin
+        A.get_C
+      rescue NameError
+        puts "A.get_C"
+      end
+    end
+    INPUT
+    assert_in_out_err([], src, %w(A.get_C), [], bug5702)
+  end
+
   def test_constant_lookup_in_method_defined_by_class_eval
     src = <<-INPUT
       class A